The global impact of DNA methylation on alternative splicing is largely unknown. Using a genome-wide approach in wild-type and methylation-deficient embryonic stem cells, we found that DNA methylation can either enhance or silence exon recognition and affects the splicing of more than 20% of alternative exons. These exons are characterized by distinct genetic and epigenetic signatures. Alternat...

Alternative splicing allows for the generation of protein diversity and fine-tunes gene expression. Several model systems have been used for the in vivo study of alternative splicing. Here we review the use of the nematode Caenorhabditis elegans to study splicing regulation in vivo. Recent studies have shown that close to 25% of genes in the worm genome undergo alternative splicing. A big propo...

In order to comprehend the influence of evolutionary changes in gene structure on the alternative splicing mechanism, we work on three related subjects: (i) conservation of exonintron sequences, (ii) splice site score changes and (iii) length data changes, across the vertebrate tree. We have analyzed conservation levels of human Alternative cassette exons (ACEs) ...

Alternative splicing events are classified into four main subgroups: (i) exon skipping (cassette exons), where the exon can be spliced out of the transcript together with its flanking introns; (ii) alternative 5�ss and (iii) 3�ss selection, which are the results of the recognition of two or more splice sites at one end of an exon; and (iv) intron retention, in wh...

Alternative splicing events are classified into four main subgroups: (i) exon skipping (cassette exons), where the exon can be spliced out of the transcript together with its flanking introns; (ii) alternative 5�ss and (iii) 3�ss selection, which are the results of the recognition of two or more splice sites at one end of an exon; and (iv) intron retention, in wh...

Alternative splicing events are classified into four main subgroups: (i) exon skipping (cassette exons), where the exon can be spliced out of the transcript together with its flanking introns; (ii) alternative 5�ss and (iii) 3�ss selection, which are the results of the recognition of two or more splice sites at one end of an exon; and (iv) intron retention, in wh...

Alternative splicing events are classified into four main subgroups: (i) exon skipping (cassette exons), where the exon can be spliced out of the transcript together with its flanking introns; (ii) alternative 5�ss and (iii) 3�ss selection, which are the results of the recognition of two or more splice sites at one end of an exon; and (iv) intron retention, in wh...

Alternative splicing of a single pre-mRNA can give rise to different mRNA transcripts. Alternative splicing of premessenger RNA is an important layer of gene expression regulation in eukaryotic cell. Consequently, alternative splicing is an important mechanism for generating protein diversity from a single gene. Due to all these important aspects of genomic alternative splicing mechanism that p...

In order to comprehend the influence of evolutionary changes in gene structure on the alternative splicing mechanism, we work on three related subjects: (i) conservation of exonintron sequences, (ii) splice site score changes and (iii) length data changes, across the vertebrate tree. We have analyzed conservation levels of human Alternative cassette exons (ACEs) ...

Alternative splicing events are classified into four main subgroups: (i) exon skipping (cassette exons), where the exon can be spliced out of the transcript together with its flanking introns; (ii) alternative 5�ss and (iii) 3�ss selection, which are the results of the recognition of two or more splice sites at one end of an exon; and (iv) intron retention, in wh...